Crimp Union Fitting, Application Potable Water, Fitting Side A Connection Type Press-Fit, Fitting Side B Connection Type MNPT, Fitting Side A Copper Tube Size 3/4 in, Fitting Side B Copper Tube Size Not Applicable, Fitting Material Brass, Copper, Fitting Side A Pipe Size Not Applicable, Fitting Side B Pipe Size 3/4 in, Material Grade C12200, C46500, O-Ring Material EPDM, Specific Fitting Shape Straight Union, Finish/Coating Polished, Fitting Side A Tube Outer Diameter 7/8 in